Pool return jets are an integral part of your filtration system and if set properly, increase the circulation of your pool water and disrupts sediment buildup and debris from walls and the floor. Also, if you have an automatic floor vacuum, when positioned properly, these jets can help the movement of the vacuum. This guide shows how to replace your pool return jets.
Pool return fittings are located on the sides of in-ground pools and come in different eyelet sizes. The most common has an “eyeball” fitting that can be adjusted to point water in the direction you want. Fittings range between 1/2” – 1” and may have a male thread at the base, or a female thread inside the cover of the jet. Most are adjustable and unscrew from the side port fitting in the pool wall. Some are glued into the side port and require finesse and expertise to remove them.
To identify the diameter and thread size of your current jets before buying you will have to remove one of the jets.
Carefully remove the outer fitting of a jet with the grip wrench turning counter-clockwise. It should come off relatively easily. Don’t force it! If you don’t feel it moving, inspect it carefully to see if it is glued into the fitting (common with older pools). If this is the case, it's best to bring in a service technician to do this properly.
Replace each old jet with a new one. Before you tighten it all the way, face the jets so the water stream circulates clockwise around the pool. Then tighten them up. Don’t over tighten but you do want a nice fit. Keep in mind that children will see these as a toy so discourage this by tightening the jets enough so they can’t unscrew them.